These infrared photodiodes are a proven light sensor in BEAM technology.
The is a breakout board for the popular XBee modules. Board includes easy-to-sew tabs and all the necessary power regulation to run on the LilyPad system.
This board mates directly with the Arduino USB board and allows the Arduino to wirelessly communicate over a modified ZigBee protocol using the popular XBee module from MaxStream.
The Pololu IR beacon is a compact board that is used in pairs to allow robots to locate each other.
This kit contains a 125 KHz RFID reader and additional parts.
If you're going to use a RF module that needs an SMA antenna, we've got you covered! Here's a 152mm swivel/tilt whip with RP-SMA connector!